The invention refers to optics, in particular to the development of a new method for optical measurements. Possible fields of the invention application are: polarimetry, spectropolarimetry and ellipsometry. The invention proposes a method for registration of changes in monochromatic light beam polarization, based on using an axial symmetric liquid crystal phase retarder and a polarization diffraction grating. The radial symmetric phase retarder allows to create a unique correspondence between the state of incident beam polarization vector and the intensity distribution of the radial symmetric beam passed through the polarization diffraction grating placed after the retarder. In the proposed method for registration of changes in a monochromatic light beam polarization the state of polarization vector is determined by values of Stokes' parameters, obtained by a single measurement.

The invention relates generally to hot water boilers used in many areas of industry and economy in general. A water heater boiler that has sheaths, a combustion chamber, heat exchange tubes filled with water, chimney for gases of combustion, water supply and outlet tubes. According to the invention, hot water boiler's sheath is hollow, the water supply pipe is mounted to these hollow walls, and the water outlet pipe is connected to the system of heat exchange tubes. Within heat exchange tubes pairs of coaxial external and internal tubes for gases of combustion are mounted, joined from one end to the combustion chamber, and from the other - to the chimney. The one end of the heat exchange tubes has a capacity to connect with other tubes, and the other end - to tubes and hollow walls simultaneously.

The invention relates to solar power technology. More particularly it relates to solar power converter stations made to satisfy human requirements for electric power, potable water and thermal energy in coastal areas, in emergency situations, such as on ships, in the army, in the hospitals, and in remote areas, as well as in private institutions. The combined solar powered device, disclosed in this invention, is comprised of a light transmission external layer (3) installed on the support structure, a saline solution distillation block incorporating inlet and outlet pipes and using a multistage membrane (10) covered by a thermal transmission layer on the front and back sides, a heat exchanger block incorporating inlet and outlet pipes and a photoelectric transmission block (4) implemented in the form of a solar cell installed on the surface of the front thermal layer of the distillation block.

Wind power station, which has a turnable body, rotor which has vertically installed shaft mounted with working wheels, wind concentrator. The body is designed with an ability of positioning the self-mounted wind concentrator to the wind direction. The wind concentrator is multistage and is composed of at least two air flow consequentially located concentrators. The entrance cross-section of the concentrators is smaller than their exit cross-section, and there are air flow gaps between the consequentially located concentrators.

Cigarette comprising a cylindrical paper wrapper (1) with a filter (3) at one end and cut tobacco (2) at the other end. The part of the cylindrical wrapper filled with cut tobacco contains a paper tube (4), the filter and the part of the cylindrical wrapper filled with cut tobacco being separated by a paper partition (5).

The invention relates to industrial means of transportation. The gravity conveyer having an inlet, an outlet and a multi-loop spiral belt (2) connecting the inlet and outlet, said belt being installed around a vertical axis. The belt (2) is designed as a ferroconcrete surface, each loop of which being square shaped and along which movable gravity driven carts are mounted to run in a preset trajectory and overhead manipulators (7) detached from said carts. Manipulator travel trajectory is determined by a guide attached to the lower surface of the belt (2). The carts travel trajectory is determined by a guide attached to the upper surface of the belt. There are technological stations (5) installed along the belt and the carts and manipulators (7) controlled by a programmable magneto-optical system run and stop relative to said stations (5). A conveyer is invented enabling relevant treatment of the loads transported on the belt, as required by technology.

The present invention relates to hail detection, warning, prevention. An automated method of wide-ranging anti-hail protection including reception of sky proper radiothermal emission in M sites, its comparison with corresponding thresholds, generation command signals to detonate combustible gas and to direct shock waves upwardly to the sky, generation and transmission alert signals, reception of transmitted alert signals in each M sites, comparison with proper code-signals of that site and setting alert operational mode of sonic generator. An automated network of anti-hail protection including M hail preventing sonic cannons set in M sites of anti-hail protection area any of which comprises an antenna, a radiometric receiver, a controlled compensation device, a controlled multi-channel threshold system, a wamer, a transmitter, a receiver, a comparison device, a first controlling switcher, a controlled single- channel thrcsholdcr and a second controlling switcher. It is enhanced operation efficiency and is automated exploitation of an anti-hail protection network.

An apparatus for producing pressure cylinders is disclosed, comprising a support (1), loading (2), compression (3), roll bending (4) and ejection (5) mechanisms successively set on the support (1), a heating unit (6)in the form of a circular inductor, an electronic control system (8) for performance management and a second heating unit (7) for maintaining the workpiece temperature during the shaping of a cylinder. The loading mechanism (2) comprises a frame (9) and a sliding mechanism (10) moveably attached to the frame (9), the sliding mechanism (10) has a drive (11, 12). The compression mechanism (3) comprises a five-jaw chuck (22) with compressing jaws (23) operated through a wedge-shaped mechanism (20). The roll bending mechanism (4) has a shaping device (28) fixed onto a block (27) rocking against the workpiece and mounted on the support (1) of the apparatus. The productivity and reliability of a device for producing pressure cylinders are enhanced while the manufacturing costs are reduced.

The invention concerns metal-air battery cell for the use in electrically rechargeable batteries. More particularly, the invention relates to battery cell with alkaline aqueous electrolyte, comprising a first reversible electrode and an air electrode forming a first galvanic cell, wherein said battery cell comprises also a second reversible electrode (i) forming a second galvanic cell with the first reversible metal electrode, and (ii) acting as second cathode during discharging and anode during charging of the said battery second galvanic cell, whereby the total specific energy is increased, and dendrites formation are lowered.

The game is executed in the form of a frame set on a stand (1). The frame (5) is hung on the stand and has the possibility of being rotated on the stand about a longitudinal axis. In the box leaves (12) are set in two rows; the number of leaves (12) in the lower row is larger by one leaf. The stand is executed in the form of a rectangular frame, blind holes ( 3 ) are made on the inner side surfaces of the stand in the center, and projections are made on the side surfaces of the frame in the center. The frame (5) has eight rectangular slots; blind holes (7) are made on the inner side surfaces of the slots in the center. The frame (5) is executed with the possibility of setting the slots into the blind holes of the stand. Into the rectangular slots of the frame are set boxes (8) executed in the form of a frame with transparent plates attached to the side surfaces. Projections (9) are made on the outer side surfaces in the center with the possibility of said projections being set into the blind holes made in the centers of the rectangular slots.